Concentric wall thickening, stenosing, with enhancement, of the proximal portion of the main bile duct, extended cranially at the confluence of hepatic ducts with associated discrete dilatation of the intrahepatic bile ducts. There are modest signs of arterialisation the hepatic circulation in the second segment. The common bile duct is not dilated. Liver without focal lesions. In the pancreas are appreciable numerous cystic lesions in continuity with the main pancreatic duct referable to IPMN of secondary ducts. It should be noted pancreas divisum with Santorinicele. The Wirsung duct is not dilated.